pytorch

97672826 - [jit] Add MutableTypePtrHelper::mapTypeToBorrowedAliasTypeSet (#65344)

[jit] Add MutableTypePtrHelper::mapTypeToBorrowedAliasTypeSet (#65344) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/65344 Callsites that know they are using a cache can borrow AliasTypeSets from the cache instead of copying them. ghstack-source-id: 140484162 Test Plan: Running perf on static runtime startup seems to show less inclusive time spent in AliasDb::getElements Reviewed By: ejguan Differential Revision: D31027363 fbshipit-source-id: b7a1473f4f9e9f14566f56f4b3b4e6317076beeb